// FormChek.js
//
// SUMMARY
//
//
// Many of the below functions take an optional parameter eok (for "emptyOK")
// which determines whether the empty string will return true or false.
// Default behavior is controlled by global variable defaultEmptyOK.
//
// BASIC DATA VALIDATION FUNCTIONS:
//
// isInteger (s [,eok])                True if all characters in string s are numbers.
// isFloat (s [,eok])                  True if string s is an unsigned floating point (real) number. (Integers also OK.)
// 

// REGULAR EXPRESSION DECLARATIONS
// Notes which apply to all the regexps below:
// (1) We want to only match strings exactly. In other words,
//     we only want to return true if the string being tested
//     matches the regular expression with no leading or trailing
//     unmatched characters. So, we begin each regexp with
//     the special character ^ (which matches beginning of input)
//     and end each regexp with the special character $ (which
//     matches end of input).
// (2) In the below comments we use these abbreviations:
//     BOI = Beginning Of Input
//     EOI = End Of Input
// (3) For explanations of the regexp special characters such as
//     ^ $ \s + [] \d * ! ? \ .
//     see http://developer.netscape.com/library/documentation/communicator/jsguide/regexp.htm


// BOI, followed by one of these two patterns:
// (a) one or more digits, followed by ., followed by zero or more digits
// (b) zero or more digits, followed by ., followed by one or more digits
// ... followed by EOI.
var reFloat = /^((\d+(\.\d*)?)|((\d*\.)?\d+))$/;



var defaultEmptyOK = false;


// Check whether string s is empty.

function isEmpty(s)
{   
	return ((s == null) || (s.length == 0));
}


// isFloat (STRING s [, BOOLEAN emptyOK])
// 
// True if string s is an unsigned floating point (real) number. 
//
// Also returns true for unsigned integers. If you wish
// to distinguish between integers and floating point numbers,
// first call isInteger, then call isFloat.
//
// Does not accept exponential notation.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isFloat (s)

{   if (isEmpty(s)) 
       if (isFloat.arguments.length == 1) return defaultEmptyOK;
       else return (isFloat.arguments[1] == true);

    return reFloat.test(s);
}


// Get checked value from radio button.
function getRadioButtonValue (radio)
{   for (var i = 0; i < radio.length; i++)
    {   if (radio[i].checked) { break }
    }
    return radio[i].value
}

// Get checked value from radio button.
function isRadioButtonChecked (radio)
{   
	RadioButtonChecked = false;
	
	for (var i = 0; i < radio.length; i++)
  {
  	if (radio[i].checked) {
  		RadioButtonChecked = true;
  	}
  }
  return RadioButtonChecked
}

// comment
function isFloatTest()
{
	alert('script123456');
}